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Merge branch 'patch-4' into 'master'
Add information about pH to Unit 1: Chemistry Part 2.md See merge request magicalsoup/Highschool!8
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- Reacts with fats and oils to form soap
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- Bitter-tasting
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## pH
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- Used as a scale to measure how acidic or basic a substance is
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- Presented as a scale from 0-14
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- The lower the pH the more acidic, the higher the pH the more basic
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- Measures `concentration` of hydrogen ions in solution
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- pH scale is logarithmic
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- Concentration is increased tenfold when pH is increased by 1
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- pH 1 = 0.1 mol/L
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- pH 14 = 0.00000000000001 mol/L
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- Water at 25 degrees Celsius is pH 7.0 (neither acidic nor basic)
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## Chemical Change
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- Similar to chemical reaction
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